I'd much rather do my training and then try to get a job doing anything at a relatively small airline and try to get my name around, make contacts and hopefully get a job with said airline as a pilot. The money would be better than instructing and I can use that extra cash to keep current. From what I've seen, some smaller airlines like to hire from within. That's not to say it's easy to get a job with an airline, it's probably easier than getting a job as a pilot though.
Sure you don't build as many hours, but as punk666 said, instructing isn't a great option. That's not to say it's a bad option either, but you need the rating then you're back at square 1 looking for a job.
That's what I'm likely to do anyway.